Police Chief Charlie Beck (rear R) and inspector general Alexander A. Bustamante, (rear L) walk out after protests against the death of Ezell Ford erupted in the audience inside the meeting of the Los Angeles Police Commission in Los Angeles, California June 9, 2015. REUTERS/Patrick T. Fallon LOS ANGELES (Reuters) - Los Angeles police commissioners on Tuesday issued a mixed ruling in the shooting of unarmed black man by two patrolmen, largely approving of one officer's actions while finding that the other had violated department policy.

The decision followed a tense administrative hearing into the shooting death of 25-year-old Ezell Ford last Aug. 11. The five commissioners briefly walked out of the hearing after activists began chanting and holding signs.

One man was arrested in a hallway outside the meeting room for interfering with a police officer, according to a Los Angeles Police Department spokesman.

Los Angeles police officials say the two policemen shot Ford, who has been described by a family lawyer as mentally challenged, after he struggled with one of them and tried to grab an officer's holstered gun.

Ford's death came days after the fatal shooting of black teenager Michael Brown by a white officer in Ferguson,Missouri, and touched off demonstrations outside Los Angeles police headquarters.

The commission's ruling sends the matter back to the LAPD's Internal Affairs division for further investigation. A decision on discipline would ultimately rest with Chief Charlie Beck.

The Los Angeles Times reported last week that Beck and an inspector general who acts as an independent watchdog had determined that the two officers who shot Ford were justified in their actions.

Department investigators found evidence indicating Ford had struggled for control of the gun of one of the patrolmen, the newspaper cited two sources as saying.

The Los Angeles County District Attorney's Office is conducting its own investigation into the matter and could decide to press charges in the case.